11201020020203 has 4 divisors (see below), whose sum is σ = 12062636944848. Its totient is φ = 10339403095560.

The previous prime is 11201020020163. The next prime is 11201020020221. The reversal of 11201020020203 is 30202002010211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11201020020203 - 2¹⁰ = 11201020019179 is a prime.

It is a super-2 number, since 2×11201020020203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201020020103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430808462303 + ... + 430808462328.

It is an arithmetic number, because the mean of its divisors is an integer number (3015659236212).

Almost surely, 2^{11201020020203} is an apocalyptic number.

11201020020203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11201020020203 is a deficient number, since it is larger than the sum of its proper divisors (861616924645).

11201020020203 is an equidigital number, since it uses as much as digits as its factorization.

11201020020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861616924644.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11201020020203 its reverse (30202002010211), we get a palindrome (41403022030414).

The spelling of 11201020020203 in words is "eleven trillion, two hundred one billion, twenty million, twenty thousand, two hundred three".